"First you have to be good on the pitch, and then you can do something else. If you lose your concentration because you’re thinking more about your haircut than your football, that’s not good.

Paul Pogba of Manchester United and Andros Townsend of Crystal Palace in action during the Premier League match between Crystal Palace and Manchester United at Selhurst Park on February 27.Source: Getty Images

‘"If after they score goals and win things, they can change their haircut — that’s not a problem. But first, concentration: think about winning and football," Cantona said.